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Type records have a unique type index, but symbol records do not. Instead, symbol records refer to other symbol records by referencing their offset in the symbol stream. In a sense this is the analogue of the TypeIndex, but we are not printing it in the dumper. Printing it not only gives us more useful information when manually investigating the contents of a PDB, but also allows us to write better tests by enabling us to verify that fields that reference other symbol records do so correctly. Differential Revision: https://reviews.llvm.org/D34906 llvm-svn: 306890
51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
//===- SymbolVisitorCallbacks.h ---------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_CODEVIEW_SYMBOLVISITORCALLBACKS_H
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#define LLVM_DEBUGINFO_CODEVIEW_SYMBOLVISITORCALLBACKS_H
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#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
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#include "llvm/Support/Error.h"
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namespace llvm {
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namespace codeview {
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class SymbolVisitorCallbacks {
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friend class CVSymbolVisitor;
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public:
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virtual ~SymbolVisitorCallbacks() = default;
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/// Action to take on unknown symbols. By default, they are ignored.
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virtual Error visitUnknownSymbol(CVSymbol &Record) {
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return Error::success();
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}
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/// Paired begin/end actions for all symbols. Receives all record data,
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/// including the fixed-length record prefix. visitSymbolBegin() should
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/// return the type of the Symbol, or an error if it cannot be determined.
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virtual Error visitSymbolBegin(CVSymbol &Record, uint32_t Offset) {
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return Error::success();
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}
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virtual Error visitSymbolBegin(CVSymbol &Record) { return Error::success(); }
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virtual Error visitSymbolEnd(CVSymbol &Record) { return Error::success(); }
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#define SYMBOL_RECORD(EnumName, EnumVal, Name) \
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virtual Error visitKnownRecord(CVSymbol &CVR, Name &Record) { \
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return Error::success(); \
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}
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#define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
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#include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
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};
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} // end namespace codeview
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_CODEVIEW_SYMBOLVISITORCALLBACKS_H
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